Matthew R Evans

US Patent:

6630664, Oct 7, 2003

Filed:

Jun 14, 2000

Appl. No.:

09/596307

Inventors:

Jack A. Syage - Huntington Beach CA
Karl A. Hanold - Irvine CA
Matthew D. Evans - Irvine CA
Yong Liu - Fountain Valley CA

Assignee:

Syagen Technology - Tustin CA

International Classification:

H01J 4910

US Classification:

250288, 250423 P, 250382

Abstract:

A monitor that can detect a trace molecule that is ionized at approximately one atmosphere. The molecule is ionized with a photoionizer and detected by a detector. The monitor may include a number of techniques to introduce a sample into the photoionizer at approximately one atmosphere. One technique includes creating an electrically charged spray that is directed into the ionizer. The photoionizer may include a plurality of light sources that each ionize the sample with a different radiation energy.

US Patent:

7119342, Oct 10, 2006

Filed:

Dec 31, 2002

Appl. No.:

10/334506

Inventors:

Jack A. Syage - Huntington Beach CA, US
Karl A. Hanold - Huntington Beach CA, US
Matthew D. Evans - Irvine CA, US
Brian J. Nies - Tustin CA, US

Assignee:

Syagen Technology - Tustin CA

International Classification:

H01J 37/08
H01J 49/10

US Classification:

250423P, 250288

Abstract:

A detector system that contains two inlet port coupled to a photoionization chamber. One inlet port allows for the introduction of a test sample. The test sample may contain contaminants, drugs, explosive, etc. that are to be detected. The other port allows for the simultaneous introduction of a standard sample. The standard sample can be used to calibrate and/or diagnose the detector system. Simultaneous introduction of the standard sample provides for real time calibration/diagnostics of the detector during detection of trace molecules in the test sample. The photoizonizer ionizes the samples which are then directed into a mass detector for detection of trace molecules. The detector system may also include inlet embodiments that allow for vaporization of liquid samples introduced to a low pressure photoionizer.

US Patent:

7161144, Jan 9, 2007

Filed:

Dec 3, 2004

Appl. No.:

11/004495

Inventors:

Jack A. Syage - Huntington Beach CA, US
Karl A. Hanold - Huntington Beach CA, US
Matthew D. Evans - Irvine CA, US
Brian J. Nies - Tustin CA, US

Assignee:

Syagen Technology - Tustin CA

International Classification:

H01J 49/10
H01J 27/24

US Classification:

250288, 250285, 250423 P

Abstract:

A detector system that contains two inlet port coupled to a photoionization chamber. One inlet port allows for the introduction of a test sample. The test sample may contain contaminants, drugs, explosive, etc. that are to be detected. The other port allows for the simultaneous introduction of a standard sample. The standard sample can be used to calibrate and/or diagnose the detector system. Simultaneous introduction of the standard sample provides for real time calibration/diagnostics of the detector during detection of trace molecules in the test sample. The photoizonizer ionizes the samples which are then directed into a mass detector for detection of trace molecules. The detector system may also include inlet embodiments that allow for vaporization of liquid samples introduced to a low pressure photoionizer.

US Patent:

20070138387, Jun 21, 2007

Filed:

Aug 23, 2006

Appl. No.:

11/509479

Inventors:

Jack Syage - Huntington Beach CA, US
Karl Hanold - Huntington Beach CA, US
Matthew Evans - Irvine CA, US
Brian Nies - Tustin CA, US

International Classification:

H01J 49/00

US Classification:

250288000

Abstract:

A detector system that contains two inlet port coupled to a photoionization chamber. One inlet port allows for the introduction of a test sample. The test sample may contain contaminants, drugs, explosive, etc. that are to be detected. The other port allows for the simultaneous introduction of a standard sample. The standard sample can be used to calibrate and/or diagnose the detector system. Simultaneous introduction of the standard sample provides for real time calibration/diagnostics of the detector during detection of trace molecules in the test sample. The photoizonizer ionizes the samples which are then directed into a mass detector for detection of trace molecules. The detector system may also include inlet embodiments that allow for vaporization of liquid samples introduced to a low pressure photoionizer.